
\begin{tabular}{lcccc}
   \toprule
                      & Rad. Nat. (Reg. Avg.) & PNV (Reg. Avg.) & PP (Reg. Avg.)  & PSOE (Reg. Avg.)\\
                      & (1)                   & (2)             & (3)             & (4)\\
   \midrule 
   Signal strength    & 0.1168$^{***}$        & -0.1072$^{**}$  & -0.0499$^{***}$ & -0.0055\\
                      & (0.0372)              & (0.0525)        & (0.0174)        & (0.0170)\\
                      &                       &                 &                 &  \\
   Observations       & 228                   & 228             & 228             & 228\\
   R$^2$              & 0.54494               & 0.60870         & 0.69047         & 0.64941\\
   Within R$^2$       & 0.34436               & 0.41767         & 0.33954         & 0.63933\\
                      &                       &                 &                 &  \\
   prov fixed effects & $\checkmark$         & $\checkmark$   & $\checkmark$   & $\checkmark$\\
   \bottomrule
\end{tabular}


